40351 has 2 divisors, whose sum is σ = 40352. Its totient is φ = 40350.

The previous prime is 40343. The next prime is 40357. The reversal of 40351 is 15304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40351 - 2³ = 40343 is a prime.

It is a Chen prime.

40351 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20175 + 20176.

It is an arithmetic number, because the mean of its divisors is an integer number (20176).

2⁴⁰³⁵¹ is an apocalyptic number.

40351 is a deficient number, since it is larger than the sum of its proper divisors (1).

40351 is an equidigital number, since it uses as much as digits as its factorization.

40351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 40351 is about 200.8755833843. The cubic root of 40351 is about 34.2992613463.

Adding to 40351 its reverse (15304), we get a palindrome (55655).

It can be divided in two parts, 403 and 51, that added together give a palindrome (454).

The spelling of 40351 in words is "forty thousand, three hundred fifty-one".